CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2024	Oct. 31, 2023	Oct. 31, 2024	Oct. 31, 2023
Statement of Comprehensive Income [Abstract]
Net loss	$ (78,364)	$ (70,304)	$ (217,653)	$ (266,711)
Other comprehensive income (loss):
Change in unrealized gains (losses) on investments	1,442	1,627	4,137	(977)
Total comprehensive loss	$ (76,922)	$ (68,677)	$ (213,516)	$ (267,688)